[1] "Futari" (the two of us) is the reading given for the kanji for "shujinkou-tachi" (the heroes/main characters of a story). So this indicates that the two people being talked about are the characters in the story Skuld is reading. ^_^
[2] In this case, "o-bentou" means those rice grains that stick to your mouth and refuse to leave. ^_^v